Dump wagon



T. c. HARVEYl DUMP WAGON Filed Feb. 8, 193

5 7' Sheets-Sheet 1..r

Vl ECV, 2N su EN o m sw 15 A Ln M@ @m1 W. www I .\\\11 i QS' hm o o o Lf o w si XN u. f: i m2 www NNN E H Q \\\m% aww E d nm o www .x au @MQ oE @E N N www 5a w R$ s: NM N AS 5 AS 5w( uw. s: N N .RT m2 ENINL EN Qct.1, 1935. T. c. HARVEY( DUMP WAGON Filed Feb. '8, 1955 '7 Sheets-Sheet 2INVENTOR ATTORNEY T. C. ,HARVEY DUMP WAGON Filed Feb. S, 1955 7Sheets-'Sheet 3 ATTORNEY 7 Sheets-Sheet 5 SMQ T. C. HARVEY DUMP WAGON vFiled Feb. 8, 1955 7/ r Rk ws qui VENTO? BY ATTORNEY T. c. HARVEY Oct.l, 1935.

DUMP WAGON 7 sheets-sheet 6 Filed Feb. 8, 1935 ATTORNEY T. C. HARVEYl@at l, 1935 DUMP WAGON '7 Sheets-Sheet 7 Filed Feb. 8, 1955 ATTO R NEY.

Patented Oct. l, 1935 UNITED STATES ATENT OFFIQE Claims.

This invention relates to dump wagons, the broad object of saidinvention being to provide a wagon of the class described, which iscapable of vario-us operations in order to expedite and facilitate thedischarge of the load therefrom in a manner most convenient to theoperator as Well as minimizing trairic obstruction.

One object is to provide a dump wagon having a bottom discharge andcapable oi being automatically emptied or unloaded, partially or whollyfrom either side of the Wagon body.

Another object in View, is to provide for emptying the load partially orwholly from the bottom.

Another object in View, is to provide for directing the discharging loadtoward either side, bottom, front and rear or practically in almost anydirection downwardly or inclined from the bottom discharge opening ofthe load body.

Another object in View, is to provide in connection with a body havingthe characteristics above referred to, means for vertically raising andlowering the body in relation to the truck frame, without interferingwith the discharge of the load under the advantageous conditions aboveenumerated. The body is adapted to be raised either by hand or motivepower.

Another object in view, is to provide means operable either from 'theoperators compartment or the ground and whereby a plurality of outletsmay be separately or simultaneously operated either with the bodyelevated or lowered.

Another object in view, is to provide means whereby bags or smallreceptacles can be directly filled by means of a novel arrangement ofrevolving chute o-r body extension adapted to discharge to either sideof the wagon.

Another object in view, is to provide for delivery of the load wherebythe discharging contents may be directed to man-holes, wheel-barrows,trucks, cars or other receptacles placed adjacently to the side of thewagon.

Another object in view is to provide means for Another object in view,is to provide means for leveling, stabilizing or distributing the loadbody contents after part of the load has been discharged and theremainder is carried to a difierent destination.

Another object in view, is to provide means for 5 quick conversion ofthe load body when needed, to the original bottom opening or outlet,without the revolving chute.

Another object in View, is to provide means for the sectional removal orassembly of the load body division boards as may be required.

Another object in View, is to provide means for ground control of therevolving chute with the body either elevated or lowered.

Another object in View, is to provide for the adequate height of thedischarge outlet for ordinary deliveryof the load, reserving theelevation means for unusual requirements in height and distance inconjunction with extension chutes of transferring the load to othervehicles, over fences, 2O onto lawns, etc.

With the above and other objects in View, the invention consistssubstantially in the combination, construction, location and relativearrangement of parts, all as will appear more fully hereinaiter, asshownin the accompanying drawings and as finally pointed out in the appendedclaims.

In the accompanying drawingsz Fig. l is a side elevational view of adump wagon constructed in accordance with and embodying the principlesof the present invention;

Fig. 2 is a vertical, longitudinal section through the dump wagon, takenalong the line A-A of Fig. 3;

Fig. 3 is a front end elevational view of the 35 dump wagon showing thetruck body or double platform arrangement, skeleton body supports, loaddoors and outlet controls and revolving chute discharge outlet. Thefront body elevating standard is shown in cross section;

Fig. 4 is a fragmentary cross section showing a portion of the loadingdoor operating means;

Fig. 5 is a detail perspective view of the detachable revolving chuteoutlet;

Fig. 6 is a similar View of the ilared extension chute;

Fig. '7 is a plan view of the dump wagon embodying the presentinvention, the fore and aft standards being shown in horizontal sectionas taken along the line B-B of Fig. 3;

Fig. 8 is a top plan View, partly in section, of the foundation board;

Fig. 9 is a side or edge View of the foundation board, partly insection; 1'

gaging the central ends of the four division wall sections;

Fig. 15 is a top plan View of the dump' body,

division walls and division wall gate operating means;

Fig. 16 is a perspective view of part of thev hand and motor controlledmeans for raising and lowering the body of the dump wagon; Y

Fig. 17 is a detail perspective View of one of the corrugated chutesupporting rails;

Fig. 18 is a front elevational view of one of the Yhinged riding blocks;

Fig. 19 is a diagrammatic view of the riding blocks and the operatingmeans therefor;

Fig. 20 is a perspective View of the bottom trap door frame, showing aportion of the trap door operating means; and

Fig. 21is an enlarged fragmentary cross-sectional view on the line Z-Zof Fig. 20.

Referring now more particularly to the drawings, it will be observedthat the wagon body or receptacle for theY load as shown is of invertedfrusto-pyramidal shape. While this is the preferable shape, it will beunderstood that the invention or inventions to be described more fullyhereinafter are equally applicable to bodies or load receptacles ofdifferent shapes than that shown in the drawings, the principalcharacteristic of the body with which this invention is concerned beingthat the side walls thereof con- Verge downwardly toward an opening inthe bottom of thebody. In the drawings the load receiving body isdesignated generally by the reference numeral I, the centrally disposedbottom opening or outlet having suitably secured to the perimetral edgethereof a frame member 2, this frame member being more particularlyshown in Figure 20. As clearly appears in this figure the frame member 2is provided with intersecting division strips It and 5 whereby toprovide a plurality of substantially equal-sized openings 3, each ofwhich constitutes, when the frame 2 is attached to the bottom of theload receptacle I, a discharge outlet. It will be apparent that by theprovision of the four discharge outlets, the material contained in thebody may be discharged through any one or more of the said dischargeoutlets.

As appears most clearly in Figures 2 :and 20, each of the dischargeoutlets 3 thus provided in the bottom of the body is adapted to beopened and closed by a horizontally arranged slidable closure member 6,these closure members v6 being all movable in directions extendinglongitudinally of the main body I. As appears most clearly in Figure 2l,the closure members' are respectively slidable within opposedlongitudinally extending rabbets 'I formed in the inner bottom edges ofthe longitudinally extending side bars of the frame 2 as well as in theopposite bottom edges of the longitudinally extending division' strip Iof said frame, the closure members I5 being respectively retained inslidable position byrmeans wardly and the outer free end of which ispro-VV vided with a laterally extending pin I2 and a terminaleye I3 forpurposes which will be appar ent hereinafter.

As appears most clearly in Figures 1 and 8, the

main body I rests upon and is directly supported by a foundation boardor platform I4 having formed therein an elongated central opening I5.This platform Iii is adapted for vertical movement together with themain body I supported thereby by means to be described hereinafter. Theplatform Ill is, of course, disposed in a substantially horizontal planeabove the vehicle frame, the latter comprising an upper frame member I5and a lower frame member II. fioreV and aft ends of the truck frame arepreferably in the form of partially boxed-in sections having thesubstantially closed side walls I8 and I9, said sections being of suchcharacter as to provide an intervening section the opposite side wallsof which are open, as at 23. Disposed within the intervening sectionandA suitably secured to the bottom end of the main body I is arevoluble discharge chute ZI, the truck frame members I6 and Il beingvertically spaced apart a distance sufficient to allow for the desiredvertical and rotative Vmovement of the discharge chute 2I.V Y

The upper and lower frame members I6 and Il are respectively ofsubstantially rectangular formation, thus affording openings therein ofThe suflicient size to permit not only a vertical move- Y ment Yof thedischarge chute 2l but also a circular movement thereof when the body Iis in lowered position, the openings 253 in the side walls of theintervening section of the truck frame being of sufficient length anddepth as to permit the free movement therethrough of the outer end ofthe discharge chute.Y As appears most clearly in FigureV 3, the free endof the discharge chute extends somewhat beyond the side limit of thevehicle frame when the chute is directed into position for dischargingthe load from the side of the vehicle, thereby facilitating the fillingof receptacles from either side of the vehicle when the main body I isin its loweredV position. At the same time, by so arranging thedischarge chute that its outer end extends through the opening 20 of thevehicle frame, the attachment of the short flared extension chute 22,such as is shown in Figure 6, is greatly facilitated.

As appears most clearly in Figures l, 3 and 5, the revoluble dischargechute 2I is provided at opposite sides of the discharge end thereof witha pair of chains 23 to which are adapted to be respectively hooked thehooks 23a arranged upon either side of the ilared end of the extensionchute, 22. v

Suitably secured to the upper end of the circular body of the dischargechute ZI is an annular rack bar or worm gear Z4 which is adapted formeshing engagement with and actuation by a worm 25 xed to a transverseshaft 26 the opposite ends of which are journalled, as at 32, (seeFigures 3 and '7) to the foundation board or platform I4. Keyed to oneend of this shaft 2@ is a bevel gear 2'I in mesh with a bevel gear 28,the latter being nonrotatably but slidably secured to a verticallyextending rotatable shaft 30. This shaft 30, which is provided with alongitudinally extending groove 29 within which the bevel gear 28 isslidably keyed, is suitably encased within a supporting tube or casing3l which is securely held in position at its upper end by a bracket 32(see Figure 7) mounted upon the side of the main body l.

Secured to the lower end of the shaft et is an operating handle 33 foreffecting the desired rotation of the revoluble discharge chute il fromthe ground regardless of the vertically adjusted position of the mainbody, it being apparent that as the said body is raised or lowered, thetransverse shaft 25 is correspondingly moved therewith as is the bevelgear 28, the latter being constantly mesh with the bevel gear 2l.Preferably, the lower end of the rotatable shaft Eil is journalledwithin a bracket 2 i3 (see Figure 3) mounted upon the side edge of thevehicle frame member i6.

Mounted upon the upper frame member it of the vehicle truck at the foreand aft ends thereof are a pair of uprights or standards 35 and 3d.Inasmuch as these standards and their associated parts are substantiallyalike, only one of them will be described in detail, it being observed,as in Figure 3, that each of said standards has journalled in the upperend thereof a pair of pulleys 3S and 3l, these pulleys being arrangedfor rotation about a common horizontally extending axis. Referring nowmore particularly to the forward standard 35, as shown in Figure 3, itwill be observed that the pulleys 3% and are traversed by a ilexiblecable 38 which is employed for raising and lowering the main body l. Thefree ends of this cable 33 are respectively attached to the eyes ilformed in the upper ends of a pair of bolts di the Shanks of whichproject downwardly through a vertically movable cross piece or block thefreely projecting ends of the bolts being respectively provided withnuts 43 threaded thereon. Preferably, these nuts i3 are retained againstdisplacement by cotter pins i4 which pass through apertures suitablyprovided in the Shanks of the bolts.

The two portions of the cable 38 which respectively pass over thepulleys it@ and 3l extend downwardly through suitable apertures providedin the end extension 8G (see Figures 2, 3 and 7) of the foundation boardor platform lli, the looped or bight end of the cable being then passedaround a pair of pulleys de and l5 suitably journalled beneath the saidfoundation board or platform I4, the pulleys i5 and it beingrespectively arranged for rotation about axes which parallel each otherand extend at right angles to the axis of rotation of the pulleys 35 and3l. This a1'- rangement equalizes the strain imposed upon each end ofthe doubled cable 38. It will be observed that the threaded ends of thebolts il project downwardly beyond the cross block l2 a sul'cientdistance to permit adjustment of the nuts l2 thereon and that by soadjusting these nuts upon their respective bolts the tension upon thecable 38 may be varied as desired at the same time that the foundationboard or platform ld may be leveled with respect to the horizontalplane.

As appears most clearly in Figure 3, the cable block 42 is centrallyprovided with a threaded aperture 4l through which is threadedlyprojected a vertically arranged screw 48. The opposite ends of the crossblocl; 42 are respectively accommodated within guide channels i9 formedin the side walls of the upright or standard 35. The upper end of thescrew i8 is rotatably journalled within a bearing 50 suitably supportedwithin the upper end of the standard 35. The lower end of the screw t@is in turn journalled, as at 5l, in the upper frame member i6 of thevehicle, said lower end of the screw 48 being provided with a downwardextension terminating in a downward eXten- 5 sion carrying a worm gear52.

The worm gear 52 of the forward screw i8 is adapted for meshingengagement with a worm 53 which is xed to a transversely extending shaft55 the opposite ends of which are suitably journalled 10 in the sidewalls of the vehicle frame. The worm gear 52 of the rear screw i8 issimilarly adapted for meshing engagement with a worm et which is fixedto a similarly journalled cross shaft et, the cross shafts 55 and 55being arranged for rota- 15 tion in a common plane disposedsubstantially midway between the top and bottom frame members ifi andil. Respectively secured to corresponding ends of each of the crossshafts 55 and d@ are the gears 5l and 58, (see Figures 3 and i6) 20 thelatter gears being respectively in mesh with the worms 59 and Si]commonly carried by a countershaft @Si extending longitudinally abovethe frame member il. Secured to this countershaft @i adjacent theforward end thereof is a 25 worm gear @il adapted for meshing engagementwith a worin 53 fixed to for rotation with a transversely extendingshaft E4 to which is secured, preferably intermediately to the endsthereof, a worm gear t5. This latter worm gear @E is driven by a worm etcarried by a vertically arranged shaft di, the lower end of the latterbeing geared through a chain of meshed gears til, to a laterallydisposed vertical shaft 6g, the lower end of which provided with a bevelgear l@ adapted for meshing engagement with a beveled gear ll fixed tothe end of a longitudinally extending drive shaft 72 adapted for controlby a clutch and gear unit (not shown), the operating lever i3 (seeFigure 1) of which is situated by the operators seat. The drive shaft l2is adapted to be driven by the gears (not shown) suitably connected to adriving motor on the vehicle frame.

From the foregoing, it will be apparent that when it is desired to raiseor lower the main body i this may be readily accomplished by effectingthe rotation in one direction or the other of the drive shaft l2 whichwill, through the gear arrangements just described, eifect the rotationof the longitudinally extending countershaft Si which in turn, throughthe cross shafts and 5S and their associated gears, will effect therotation of the fore and aft screws iS-i3 in unison in consequence ofwhich the cross blocks l-d2 will be commonly raised or lowered tocorresponding- 55 ly lower or raise the foundation board or platform tl,the latter being suspended between the looped ends of the cables d8-3i?.

If desired, the raising or lowering of the foundation board or platformid may be eected by 60 hand instead of by the motor (not shown) on thevehicle frame and to this end the vertically extending shaft @9 may beprovided with an auxillary worm gear lll which is adapted for meshingengagement with a worm t5 xed to and carried 55 by a laterallyprojecting shaft 'l the free end of which is formed for connection witha crank handle, any suitable means being employed for maintaining thebody i in vertically adjusted position, such as a ratchet carried by thelaterally projecting shaft 'it for engagement with a pawl or detent (notshown). This alternative arrangement for raising or lowering the body lby hand facilitates such operation when the operator is standing on theground beside the vehicle.

Preferably, the upper ends of the fore and aft standards 35 and 34 arepreferably respectively covered by the caps 'Il retained in position bymeans of the screw bolts i3. These standards 35 and 3d are respectivelyslotted, as at 19, in the faces thereof which present toward each otherin Y order to permit the free vertical movement of the substantiallyT-shaped extensions 80 provided at either end of the foundation board orplatform it, these extensions being retained Within the standards 35 and3d and guided during the vertical movement of the platform by thevertically extending ribs lll which define the vertically extendingslots i9 in the standards. Preferably, the standards are eachstrengthened and supported by under and side braces or :ribs 82 and 55(see Figs. 1 and 7).

Referring now more particularly to Figures 1, 2, 8 and 9, it will beobserved that the mechanism for operating the bottom'trap doors 6includes a forward pair of transversely extending shafts 84 and @da anda rearward pair of transversely extending shafts and 85a, each of saidshafts being suitably urnalled upon the bottom surface of the foundationboard or platform Ill, The

shafts Sil and dilo respectively have xed thereto the pinions 8'3 and35a, While the shafts 85 and liti-r1, have respectively fixed theretothe pinions Vill and it being observed that the pinions 66,

des, ii'l and lla are relatively so located that they respectivelyengage the longitudinally extending rack bars l l which are respectivelysecured to the several trap doors t (see Figure 20) .Y Secured to theouter extremities of the transversely extending shaft are a pair of handwheels B3, the transversely extending shafts tito, 85 and 85a beingsimilarly provided at their opposite extremities with hand wheels. Itwill be apparent that by virtue of these hand-operated transverselyextending shafts and the four sets of hand Wheels arranged to eitherside of the vehicle the opening or closing of any one of the trap doorsby an operator stationed at either side of the Vehicle is facilitated.

In addition to the pinions et, Sta, S'I and 87a, the severaltransversely extending shafts are respectively additionally providedwith the pinionsV Se, and (see Figures 8 and 9), the pinions and Sillabeing respectively in toothed engagement with the reverse motion pinionsQI and Ello. Slidable within suitably formed grooves 93 formed in thebottom surface of the foundation board or platform ld are thelongitudinally slidable rack bars s2, these rack bars being held inposition against vertical displacement from their respective grooves S3by means of the cover plates and 913er. The several rack bars arerespectively in mesh with the pinions S9, 89a, SI and elo.

Connected to the forward extremity of each of the rack bars 92 is acable 95, it being observed that four such cables are necessarilyrequired, the portions the cable which extend longitudinally of thefoundation board Il (see Figure 8) being arranged in laterally spacedparallel relation. f-ls appears most clearly in Figures l and 9, thecables @5 respectively pass around a plurality of pulleys 35 which arejournalled upon the forward edge of the foundation board or platform I4and thence extend upwardly and over the pulleys lll, dla, and 93a, thefree ends of the cables 95 being finally secured to the terminal ends ofa plurality of hand-operated levers 99, 98d, Il and Elisa. Preferably,the last-mentioned end levers are arranged in pairs, the levers Q9 and99a constituting one pair, being mounted upon a short stub shaft IUI (assee Figure 12) which is suitably secured to forprojection forwardly fromthe front face of the main body I. The hand levers |30 and Ia,constituting the second pair, are similarly mounted upon a stub shaftwhich is preferably located vertically above the first-mentioned stubshaft.

Asvappears most clearly in Figures 3 and 12, each of the hand-operatedlevers iid, ses, IUIl and IIla is provided with a ratchet wheel IEEE,these ratchet wheels being adapted for respective engagement by thedetents I d3, it being understood, of course, that any suitable means orthe like may be provided for normally maintaining said detents out ofengagement with their respective ratchet wheels. As appears most clearlyin Figures 1, 3 and l2, it will be observed that each of thehand-operated levers is provided with a hand grip Ill and that the armsof the levers 99 and Ill are respectively shorter than the correspondingarms of the levers @Se and IElIlo. This enables the operator to operatethe levers independently of one another or simultaneously. The handgrips Idd of the lower pair of hand levers are adapted to be commonlygrasped by one hand of the operator while the hand grips ofthe upperpair of hand levers are adapted to be commonly grasped by the other handof the operator, thereby making it possible to operate all of the leversin unison whereby to open or close all of the Vtrap doors in unison. Or,if desired, the several hand levers may be operated selectively, eitherindividually or in pairs, to open or closeY any one or more of the trapdoors E in the bottom of the main body l. And it will be apparent, ofcourse, that the opening or closing of these trap doors may be effectedby the operator of the vehicle without leaving the drivers compartmentthrough the medium of the handoperated levers et, Elsa, Illll andlilies. If, however, the operator is standing on the ground upon oneside or the other of the vehicle, the trap doors may be selectivelyopened or closed by operating one or the other of the hand wheels 88. Asappears most clearly in Figure l2, the handoperated levers arepreferably weighted adjacent the grip ends thereof whereby to take upthe cable slack when the bottom trap doors are opened or closed by meansof the hand wheels 38.

As appears most clearly in Figures l, 2 and 3 the front and rear ends ofthe i ain body I are preferably supported above the foundation board orplatform I4 by means of vertically extending skeleton end supportsIt-ills and suitably associated supporting crib work 2 I E, saidskeleton end supports and Said crib work being all founded upon thefoundation board or platform i4.

Still another means is provided for opening and closing the bottom trapdoors 6, this latter means including a plurality of flexible cables lol'which are respectively terminally attached to the eyes I 3 of the rackbars II, the cables iiil being respectively passed over the'pulleysIllli which are journalled in the foundation board or platform l, thefree ends of the several cables I'l being looped, as at lill?, toprovide hand grips by means of which the operator, standing upon theground, may pull one or the other of the several cables I6? to open thedesired trap door or doors il (see more particularly Figure 2).

As appears most clearly in Figures l and 2, the main body I haspivotally mounted at oppo; site sides thereof, as at III and III, a pairof laterally spaced thrust arms H0, one such arm being provided for eachcable I'I. Each of the thrust arms I|9 terminates in arcuately curvedportions having an arcuated slot within which is adapted to be projectedthe pin |2 of the rack bar I I. A contractile spring l I2 connects eachthrust arm with a point with the main body I, these springs servingnormally to pull the several thrust arms I lil toward the body and' inso doing causes the trap doors 6 to be respectively moved into closedposition, this latter action being eifected through the siot and pinconnection between each thrust arm il@ and its associated rack bar II.

It will be understood, of course, that as the trap doors are pulled intoopen position by means of the cables |61, the transversely extendingshafts 863, id, 85 and 35a (see Figure 8) will `be correspondinglyrotated, this being due to the ratchet wheels being designated by thereference numeral M3 and the pawls or detents by the reference numeralsi ifi in Figure 8.

As appears most clearly in Figure 17, a supporting rail M5 is providedfor use with the extension chute 22 or the like when it is not desiredto employ the revoluble discharge chute 2|. This chutefsupporting raildit is provided with a serrated or corrugated central section, the endsof this rail being adapted for removable securement to the bottom'frame2 defining the bottom discharge outlet of the main body. As appears inFigure 17 this chute supporting rail may be in the form of a straightsection the opposite ends of which are provided with an upwardlyprojecting supporting arm, the chute so formed being adapted forconnection to the frame 2 so that the corrugated edge thereof extendseither longitudinally or transversely across any longitudinally ortransversely arranged pair of the discharge openings If desired, thechute supporting rail may be rectangular, circular or other suchcontinuous outline with mea-ns for attaching the same to the bottom ofthe frame 2 in such manner that a may be sus' ended therefrom in any oneof a number of positions, thereby affording communication between thechute and any desired one of the discharge outlets 3. It will be understood that the serrations or corrugations formed in the chute-supportingrail, when the chute hooks ll (see Figure 6) are engaged therewith,prevent lateral displacement of the supported end of the chute. It willalso be understood that the chute-supporting rail, be it of the typeshown in Figure i7 or or" the rectangular shape or curved when properlyattached to the frame 2 rovides ir intermittent use of a chute when thevehicie isb-sing employed principally as an ordinary central drop loaddump wagon. W'hen the rute or supporting rail H5 is so employed, therevoluble discharge chute El is, of course, removed from the loadreceiving body.

As has already been observed, the extension chute is provided with hooksat its rear end which are adapted not only for engagement with thesupporting r il l iii aforesaid but also for engagement with a rail Iigcarried by and extending across the bottom of the outwardly extendingsection of the revoluble discharge chute 2|.

The side walls of the extension chute 22 are flared toward their rearend, the flared portions ||8 of these side walls being respectivelyprovided with laterally projecting hooks 23a respectively adapted forengagement with the chains 23 with which 5 the revoluble chute 2| isequipped. The extension chute 22 is preferably employed when it isdesired to discharge the load or portions thereof into receptacles to befilled, coal holes, troughs, tram cars and the like, all of which arelocated 10 upon the ground when the body I is lowered. The end hooks II3 on the extension chute 22 are employed principally when the body iselevated and a long chute is required. The extension `chute 22 beingnarrower in its main body portion l5 and iiared at its intake orreceiving end |2I and being further provided with an end wall I22extending between and interconnecting the flared side walls |23,constitutes a receiving member for the material being discharged whereinspilling of said material is greatly minimized. Preferably, the flaredintake end of the extension chute is of suiiiciently large dimension toembrace the hole of the discharge opening which is covered by the fourbottom trap doors 6, thus permitting the use of this extension chutewith or without the revolving discharge chute 2|. Preferably, thedischarge end of the extension chute 22 is provided with handles 2|@ orthe like for facilitating its manipulation into the desired position.

As appears most clearly in Figures l, 2, 3 and '7, the main body I isprovided with a plurality of side loading doors |24, these doors beingrespectively adapted for movement in vertical planes, the doors beingclosed when they are moved into their uppermost position as shown inFigure 1. Preferably, a pair of such doors are arranged to either sideof the main body in longitudinally spaced relation.

Ihe mechanism for operating these side loading doors |24 will now bedescribed. This mechanism generally includes a worm shaft |25 suitablyjournalled uponthe frontal face of the main body I and having fixed toits outer free end a hand wheel |26 for effecting the rotation of said45 Worm shaft in one direction or another (see more particularly Figures1, 3 and 4). Pivotally secured to the bearing |21 within which the shaftI 25 is journalled is a weighted detent |28, this detent being operativeto automatically engage a pinion l 23, the latter being meshedfwith theworm of the worm shaft |25. This pinion |29 is keyed to a transverseshaft |3 carrying at its outer extremity a worm 13| which is in meshwith a pinion |32 keyed to the end of a shaft |33 ex- 55 tendinglongitudinally along the side of the main body I immediately below thelower edges of the loading doors 24. This longitudinally extending shaft|33, as appears most clearly in Figure 1, issuitably journalled inbearing members |34 se- 60 cured to the side of the main body I.

The rear end of this longitudinally extending shaft |33 is connected, bymeans of the bevel gears I 35 (see Figure 7), to one end of atransversely extending shaft |3311, the opposite end of thistransversely extending shaft |33a being similarly connected, by means ofthe bevel gears |35a to a shaft |331) extending longitudinally along theopposite side of the main body I. There is thus provided in eifect acontinuous shaft eX- tending along one side of the main body, thencetransversely of the rear end thereof, and thence along the opposite sidethereof, it being under-- stood, of course, that upon rotation in onedirection or the other of the shaft section |33, a cor- 6 acre, 174e Y10 |31. These screws |31 are suitably journalled adjacent theirrespective upper and lower ends in bearings. 38 suitably mounted uponthe side walls of the main body i. It will be observed that a pair ofscrews |31 is provided for each loading door |24. 1t will furthermore beobserved that Ythe upper ends of each screw |31 engages an in- 4teriorlythreaded socket or collar |39 which is suitably formed in an arm orbracket fastened to 5 Veach upper corner of each loading door |24.Preferably, the upper ends of the Vertical screws |31 aresmooth-surfaced or threadless and slightly tapered, .each of saidtapered, smooth portions of the screws |31 being provided with a coilspring |45.

correspondingly formed ,andequipped with coil r springs |41 (see moreparticularly Figures 1 and 3). These coil springs |49 and |4| operate asautomatic shut-off or safety devices when the loading doors arecompletelyropened or closed regardless whether the power is applied ornot. Thus, when the actuating power is applied to close the loadingdoors |24, this being ehected,

of course, by proper manipulation of the hand 'wheel|26, the bottomsprings |4| operate automatically to eifect the necessary threadedengagernent between the several vertical screws |31 and theirrespectivefixed sockets orrcollars |39, it being apparent that continued rotationpf the hand wheel |26 in the proper direction will so impart '4orotationto the screws |31 as to cause the sockets v |39 to move upwardlytherealong, thereby carrying the doors |24 into their upper and closedposition. As appears most clearlyin Figures 1, Y V3 and 7, the loadingdoors |24 are guided in their vertical movements by vertically disposedguideV strips |42 suitably secured to opposite` faces of Y, the verticalside walls of the main body to provide a plurality of pairs of opposedchannels within which the opposite vertical edges of the loading doorsare received. It will be apparent that the' arrangement just describedpermits the lsimultaneous operation of all of the load. doors j |24 fromthe front end of the vehicle, this operation being possible regardlesswhether the main body is in raised or lowered position. Y

1t is preferable to provide some means for subdividing the main bodyinto a plurality of individual compartments and to this end there isprovided a p'air of vertical sections |44 and 45 and a second pair ofvertical sections |46 and |41, these .vertical sections being so formedalong theirl inner vertical edges as to permit their slidable retentionwithin suitably formed vertically extending slots, Y grooves or channels|48 provided in a central ver- 5 i tical post |49 (see more particularlyFigures 13 and le) this central vertical post |49 serving to-.detachably secure the division Wall sections |44 vto lrlitogether.Suitable bifurcated lugs |50 or the like are secured to the inner facesof the side iwalls of the main body for respectively receiving 1 theouter edges of the division wall sections |44 to` llpthese lugs '|55being preferably provided with setscrews` |5| or the like for rigidlysecuring 75 and retaining the division wall sections in posi-Vtransversely extending division strip 5 of the The lower ends of thescrews are Y '|551 and are respectively provided with pinions v splitbearing is preferably maintained closed by Vwhich is provided withrabevel gear or pinion |10 Y ly extending shaltY |52. |15, is in turnprojected through a third tubular shaft |1|, the forward endV of whichis also pro- 75 tion: As appears quite clearly Figure '7, the :A

division wall sections when properly positioned within the main bodyconstitute in effect a longitudinally extending partition which isintery sected substantially at right angles by a trans- 5 verselyextending partition, the longitudinalhr extending partition beingdisposed substantially in the plane of the division strip 4 of thebottom frame 2 and the transversely extending partition being disposedsubstantially in the plane of the 10 bottom strip 2. There is thusprovided four compartments which are respectively provided with thedischarge openings 3 (see Figure 20) each of Y which openings isprovided with its own individu- 15 ally operated trap door 6, as alreadydescribed. The four `compartments so provided are thus adapted to belled with different materials for individual or selective dischargethroughrtheir respective discharge openings or the four com- 20partments may be lled with material adapted to be discharged in oneoperation by simultaneously opening all of the trap doors 6. Preferably,the upper edges of the division strips 4 andY 5 of the frame 2surrounding the bottom opening in the 25 main body l are grooved orslotted longitudinally thereof to snugly accommodate the bottom edges ofthe division wall sections |44 to |41. Y

As appears most clearly in Figures 13 and 15, each of the division wallsections 44 to |41 is 30 provided in the bottom thereof with avertically movablegate |54. Each of these gates |54 has fixed adjacentthe upper edge thereof an interiorly threaded socket |55 or the likethrough which is vertically projected a vertically extending screw 35|51, this screw being suitably journalledY in a bearing |58 secured tothe upper portion of the division wall section. Fixed to the upper endof each screw |51 isa pinion or gear wheel |59, the pinions |59 socarried by the vertical screws of the trans- 40 verse division wallsections |46 and |41 respectively engaging suitable worm gears or thelike |60 carried by short shafts |5| and |62. These shafts |61 and |62extend in opposite directions from the central axis ofthe main body andare journalled 45 for rotation in suitable bearings |63 mounted upon.the upper edges of the transverse divisionY wall sections |45 and |41.As appears most clearly in Figure 15, the proximate ends'of the shafts5'0 or gear wheels |64 and |65.

Extending longitudinally of the main body and lying substantially in theplane of the division wall sections |44 and |45 is a shaft |61, thisshaft being provided with a screw or worm gear |65 for meshingengagement with the pinion |59 of the screwV |51 Ycarried by the forwarddivision wall section |44. The forward portion of the longitudinallyextending shaft |69 is supported within a split bearing mounted upon theupper edge of the forward division wall |44, one portion of this bearingbeing hinged to the other portion thereof whereby the bearing may beopened to permit the removal of the shaft.v The means of a thumbscrew"|69 or the like. The longitudinally extending shaft |61 isprojected through a second tubular shaft the forward end of adapted formeshing engagementwith the bevel v gear or pinion E55 carried by theshort transverse- This second tubular shaft vided with a bevel gear orpinion |12 adapted for meshing engagement with the bevel gear or pinionist carried by the other transversely extending shaft lill. Thelast-mentioned tubular shaft lll is projected through still anothertubular shaft llt, the latter being provided at a somewhat removeddistance from its forward end with a Worm or other such gear Elfi whichis adapted for meshing engagement with the bevel gear or pinion `l 59fixed to the upper end of that vertically extending screw ll which iscarried by the rearward division wall section M5.

It will thus be observed that the central shaft le? and the threetubular shafts embracing the same are all coaxially arranged withrespect to each other, the outermost shaft being of shortest length andthe innermost central shaft being of greatest length. This coaxial shaftassembly is suitably supported or journalled Within bearings lle-lib inlongitudinally spaced relation upon the upper e ge of the rearward.division wall section Een. Preferably, the central shaft |67 and thetubular shafts surrounding the same are separated from each other bysuitable ball'or roller bearings.

Respectively secured to the rear ends of these four coaxially arrangedshafts are the hand wheels Vila, ll'lb, i'llc and l'l'ld, it beingapparent that upon rotation of thefhand Wheel Ella, the gate in therearward division wall section 265 may be lifted vertically. Similarly,by operating the hand wheel lllc the gate in the division wall sectionmay be vertically raised or lowered, While operation of the hand wheelsll'lb and Illa respectively effect vertical movement of the gates in thedivision wall sections Ml and Hifi.

Preferably, the division wall sections each are provided with hand holesllS (see Figure 13) to permit the removal of these sections by means ofan overhead crane or tackle. By means of the selectively movable gatesi513 in the several division wall sections Mie to itil, the operator ofthe vehicle may readily stabilize the load contained in the main body lafter a part of this load has been delivered or he may speed up thedischarge of the load, as when only one of the four coinpertinents isfilled with a slow-moving `material and it is desired to make availableall four of the bottom discharge outlets 3, it being obvious in suchcase that when all of the gates are raised the discharge of the materialfrom the single-filled compartment will be greatly accelerated.

Referring now again more particularly to Figure l, it will be observedthat the foundation board or platform lll, when in its lowered position,is yieldacly supported by a plurality of weighing springs i8! foundedupon the vehicle frame l5. In general, the weighing mechanism comprisesa stationary dial (see Figures l and 11), with which is operativelyassociated an indicating hand l carried by a rotatable arbor actuated bya vertically extending movable rack bar itil. As shown in Figure ll, therack bar i8@ is telescoped within a tubular member it which ismaintained in longitudinally adjusted position relatively to rack bari855 by means of a set screw 85. This enables the length of theactuating member of the weighing mechanism to be adjusted in length. Therack bar itil is projected through a lock box within which is housed theset screw its?. This lock box lill is provided with an openable doorwhich may be locked to prevent unauthorized persons from tampering withthe adjustment of the actuating member of the weighing mechanism. Inthismanner the proper official may adlcumferentially extending springsISE of the weight of the platform lil, the

main body l carried thereby andthe load contained in said main body.These riding blocss le@ are normally held in the body sustainingposition by means of springs lill, one such spring being employed foreach riding block and each spring being adapted to normally itsassociated riding block into the necessary vertical position forsupporting the platform lil. When it is desired to transfer the platformand the body supported thereon from the riding block to the weighingsprings 63E, the former are pulled into substantially horizontalposition by means of the flexible cables |92 which are respectivelysecured to the riding blocks and pass around pulleys suitably jomnalledin the vehicle frame member Preferably, all of the cables i are joinedtogether, as at its, (see Figure i9) and are then commonly passed overthe guide pulleys it and llf for connection to a hand-operated lever(see Figures l and 19), the latter being mounted at one side of thedrivers seat. This lever is of the usual thumb-latch type including anarcuated toothed segment and an associated detent for maintaining theriding blocks lds in pressed position during the weighing of the load.When the lever le? is returned to its non-weighing position the ridingblocks assume their upright positions in which positions they supportthe platform lli and relieve the weighing mechanism of any and allstrain.

The actuating member tl-*85 of the weiching mechanism projectsdownwardly throi.Q a suitable opening 2l l formed in the extension 2t@of the foundation board if: (see Figure 8) and is adapted for contactingengagement with the top surface or" the vehicle frame membe The frontriding block is preferably slotted, as as Het, to permit the block to bedepressed into its horizontal position Without with the downwardlyprojecting actuating member of the weighing mechanism. The weighing ispreferably disposed centrally between the opposite sides of the vehicieso as not to interfere with the free movement of the thrust il@ employedfor actuating the horizont ll movable bottom trap doors t.

As appears most clearly in Figures and 5, the revoluble chute dischargel is provided with a cirdownwardly turned flange 699 the bottom edge ofwhich constitutes a continuous circular track for rotatably supportingthe discharge chute upon rollers or pulwhich are suitably journalled inbrackets Elli bolted or otherwise secured to the bot surface of thefoundation board or plat;L m When it is not desired to employ therevoluble chute discharge, the sameis readily removed frcfn itsoperative position as shown in `Figure l sim by loosening se eral of thepermitting the rollers or pulleys out of engagement with the l" quentlypermitting the removal y racket bolts thereby be moved and consethereyoluble i discharge chute bodily from the vehicle.

In addition to the supports for the main body In order to conserve spaceand prevent spilling in connection with the use of the revolubie chutedischarge 2 l, a demountable frame is employed (see Figures 2 and 7)this frame being provided with sloping side walls which convergedownwardly to form a bottom opening disposed substantially in ahorizontal plane lying below the upper edge of the discharge chute 2i.This frame, which practically encompasses the four discharge "openingsis secured in position to cross pieces within theY foundation board orplatform ifi by means of bolts 2665. W hen it is desired to employ thebody for regular drop load purposes, the frame 265 together with itsassociated revoluble chute discharge 2i are readily removed by thesimple expedient of removing the bolts Ecc.

Referring again to the elevation standards 3d and 35, it will b-eobserved that the vertical lift screws l are each provided at theirupper and lower ends with smooth-surfaced or non-threaded portions,these portions being slightly tapered and accommodating coiled springs228. These springs Biii operate like those on the screws for actuatingthe side loading doors to serve as safety devices in limiting thevertical movement of the body in either direction. Thus, should theactuating power not becut ofi when the body reaches its lowermost oruppermost position, the Vsmooth-surfaced portions of the screws continueto'rotate ireely Within the cable blocks l2 without, however, edectingany further movement of the latter in one direction or the other. Whenthe power is reversed, however, the springs 2538 are operative instantlyto force the blocks i2 into threaded engagement with the screw 43whereupon further rotation of the screws Will cause the blocks l2 totravel axially thereof to either raise or lower the body as the case maybe.

From the foregoing description, when considered in connection withV theaccompanying drawings, it will be observed that a vehicle has beenproduced by which the load may be weighed with the vehicle disposed fordischarging the load from either the front or rear end thereof or fromeither side thereof. The provision of the enclosed revoluble chutedischarge permits of a wide range of service, particularly when it isemployed in connection with the flared extension chute, spilling ci thedischarge load being reduced to a veritable minimum. Furthermore, therevoluble chute discharge permits the load to be discharged in a loweredposition, it being possible to direct the discharge load to a pointeither within or without the external lines of the vehicle frame.

' This is a particularly desirable feature in all such instances whereinit is necessary that the discharge load be clear of the vehicle wheelsso as not to hinder the free movement of the vehicle in either directiononce the load has been discharged. Furthermore, when the revoluble chutedischarge is removed, the load may be discharged directly from thebottom of the main body or it may be.VV

directed to either side thereof by way of an eX- tension chute suitablysupported by the chute rails which are adapted to be attached to thebottom of the body as hereinbeiore described.

The body is self-emptying either in its elevated or lowered position, itbeing apparent that the en- A 5 tire body may be readily raised orlowered either Vby hand or by motor without spilling any of the load.Also, the outlet trap doors in the bottom of the main body are adaptedto be operated from the seat selectively and individually, orin pairs,l0 or they may be all l operated simultaneously. Furthermore, these trapdoorsrmay be operated from the ground and with the body in eitherelevated or lowered position. Similarly, the side loading doors as wellas the riding blocks are l5 Vadapted to be operated by the driver whileseatedV in his driving compartment` The division Wall sections whichsub-divide the main body into a plurality ci separate and independentcompartments allow for single or multiple delivery at the 20 same timethat they provide a very effective means for stabilization of a partload in order to afford safer transit over rough roads. The verticallyYmovable gates in these division wall sections facilitate not only thisstabilization of the load but 25 also may be employed for acceleratingthe discharge of a slowly moving material. In addition to the foregoing,a weighing mechanism has been provided which may be adjusted officiallyand thereafter locked and sealed, thereby providing 30 protectionagainst unauthorized tampering therewith byrunscrupulous persons. Also,by virtue of the arrangement of the supporting crib work for the bodyand within which the foundation board is guided in its verticalmovement, it is not pos- 35 sible for the body to drop from an elevatedposition unless the lifting cables at opposite ends of the vehicle breaksimultaneously.

It will be understood, of course, that the invention is susceptible ofvarious changes and modi- 40 cations which may be made from time to timewithout departing from the real spirit or genera-1 principles thereofand it is accordingly intended to claim thesame broadly, as well asspecically as indicated in the appended claims. 45

What is claimed as new and useful is:-

i. A dump wagon of the character described comprising, in combination, amain body constituting the load receptacle, said body being providedwith a downwardly converging bottom sec-,50 tion and an upper sectionextending above the plane of the upper edge of said converging bottom, asectional lay shaft extending longitudinally along the opposite Vsidesand transversely across the rear oi said. main body, a plurality ofverti- 55 cally slidable sideV loading doors provided in the sides oithe upper section of said main body, vertically disposed screw meanscarried by said upper section of the main body and disposed to eitherside of each side loading door for operative 60 association therewith,said screw means being commonly actuated by said sectional shaft, andmeans arranged at the fore end of said main body and carried thereby foreffecting the rotation of said sectional shaft in one direction or 65another to effect the simultaneous movement of said side loading doorsupwardly or downwardly as the case may be. Y

2. A dump wagon of the character described comprising, in combination, amain body havingV Vsubstantially vertically extending side, rear andfront walls and a downwardly converging bottom, the latter terminatingin a bottom discharge opening, a pluralitv of substantially verticallyslidable side loading doors respectively arranged in the opposite sidewalls of said main body, a pair of opposed guide channels provided insaid side walls for each of said side loading doors, vertically arrangedscrew means carried by said main body side walls and operativelyassociated with each of said side loading doors to effect the upward anddownward movement thereof, and manually operable means located at oneend of said main body for commonly actuating said screw means whereby tosimultaneously effect the movement of said side loading doors eitherupwardly or downwardly.

3. A dump wagon of the character described comprising, in combination, amain body constin tuting the load receptacle, said body being providedwith a downwardly converging bottom terminating in a discharge opening,a plurality of substantially vertically slidable side loading doorsarranged immediately above the horizontal plane of the upper edge ofsaid converging bottom, gear operated screw means for effecting thevertical movement of said side loading doors, and means operativelyassociated with said screw means for permitting the free rotation of thelatter when the doors have been moved into their normal fully closed oropened positions, whereby upon continued operation of said screw meansthe latter -is ineffective to move said doors beyond said normalpositions.

4. A dump wagon of the character described comprising, in combination, amain body constituting the load receptacle, said body having upwardlyextending side walls, loading doors arranged in opposite walls of themain body for sliding movement respectively in the planes of said sidewalls, a pair of guides provided in said side walls for each of saiddoors, screw means for electing the sliding movement of said doors intoclosed and opened position said screw means including for each loadingdoor a pair of vertically 10 disposed screws journalled upon the saidside walls to each side of each door, and means commonly operative uponsaid screw means for simultaneously opening o r closing all of saidloading doors. I5 5. In a dump wagon of the character described, incombination, a main body constituting the load receptacle, .said bodyhaving upwardly extending side walls, side loading doors respectivelyarranged in opposite side walls of the main body `for sliding movementin the planes thereof, screw means operatively associated with each sideloading door for sliding it into closed or open position, meansoperative automatically to render said screw means ineiective to movesaid -doors beyond their fully closed or fully opened positions, andmeans for insuring the positive actuation of said screw means toinitiate the movement of said` doors out of their fully closed or openedpositions.

THEODORE C. HARVEY.

